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11 1 10TH ANNIVERSARY ISSUE 1553 January 2015 Check List the journal of biodiversity data LISTS OF SPECIES Check List 11(1): 1553, January 2015 doi: http://dx.doi.org/10.15560/11.1.1553 ISSN 1809-127X © 2015 Check List and Authors Vascular plants from Kunashiri Island, the southernmost island of the Kuril Islands, island arc between Hokkaido and Kamchatka peninsula Tomoko Fukuda1*, Hiroki Yamagishi2, Andrei Loguntsev3, Vyacheslav Yu. Barkalov4 and Yukio Ishikawa2 1 Department of Botany, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba 305-0005, Japan 2 The Shirakami Institute for Environmental Sciences, Hirosaki University, 3, Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan 3 State Natural Reserve “Kurilsky”, Zarechnaya st., 5, Yuzhno-Kurilsk, 694500, Russia 4 Institute of Biology and Soil Sciences, Far East Branch, Russian Academy of Sciences, 159, Prospekt 100 let Vladivostoku, Vladivostok, 690022 Russia * Corresponding author. E-mail: [email protected] Abstract: Vascular plants of the Kunashiri Island, the and as species concepts employed by Russian taxonomists southernmost island of the Kuril Islands, were inventoried sometimes differ from that of Japanese taxonomists, such during an expedition to Kunashiri, 19–25 July 2013. This comparisons are helpful to remedy this situation. To do this, study was conducted as a part of the Sika Deer (Cervus nippon thorough comparisons in both areas of the floral composition yezoensis) management program in Shiretoko World Natural in each major vegetation types are needed. Heritage Site, to assess vegetation damage under strong This assembled check list is the result of a vegetation study browsing pressure by the deer. A checklist of the vascular undertaken as a part of the Sika Deer management program plants was made from each study locality. As Kunashiri Island in Shiretoko World Natural Heritage Site. Sika Deer are native is very close to Shiretoko Heritage Site, with similar climatic to most areas of Japan, from Hokkaido to Yakushima Island and geographical conditions, this plant list will provide a of Kyushu, with their numbers having notably increased from preliminary comparison of the floral composition between 1970 onwards in Shiretoko. On the other hand, Sika Deer are Kunashiri and Shiretoko or Hokkaido. Our research revealed absent from Kunashiri, or at least have not been recorded that vegetation is well preserved on Kunashiri, and this floral here until now (Hokkaido Regional Forest Office, Kushiro list will serve as a reference of the original floral composition Branch 2012). The specific objective of the study was to assess of Shiretoko World Natural Heritage Site prior to damage by the recovery of damaged vegetation under strong browsing deer. pressure by the deer. As a result, a vegetation classification of each locality accompanies our check list. Descriptions of the Keywords: Sika Deer (Cervus nippon yesoensis), flora, floristic composition of vegetation was reported, for example, Kunashiri, Kuril Islands by Tatewaki and Hirano (1936) for Picea glehnii forest of Furukamappu (Yuzhno-Kurilsk), and such descriptions are useful for comparison to the floral composition on Kunashiri INTRODUCTION and Hokkaido. Our check list will also provide a reference on Kunashiri is the southernmost island of the Kuril Islands the original flora and vegetation of Shiretoko World Natural and holds a close floristic relationship with neighboring Heritage Site before damage by the deer. mainland Hokkaido. The island is considered to have been connected with Hokkaido and Shikotan until after the last MATERIALS AND METHODS glacial period (Melekestsev et al. 1974). The geological envi- The studied localities are indicated in Figures 1 and 2 and ronment of Kunashiri resembles that of Shiretoko Peninsula Table 1. All the sites are located in the south part of the island. of eastern Hokkaido in its mountainous topology with volca- Their ecological characteristics are as follows: nic activities. The flora of Kunashiri Island has been reported 1) Andreevka is located at the Pacific coast, and the plant several times (e.g., Miyabe 1890; Matsumura 1943; Tatewaki co mmunities of this locality, including coastal grassland, 1957; Alekseeva 1977, 1983; Voroshilov 1982; Barkalov 1980, meadow and coniferous forest, are mostly secondary 2009; see Takahashi 1997 for details); these reports were inte- succession; grated in a recent publication by Barkalov (2009). However, in 2) Mount Tomari is characterized by a wider variety of these studies, the flora and vegetation of the island are often plant communities than other localities, ranging from treated as a part of the Kuril Islands or the Sakhalin region coastal grassland along the Okhotsk Sea to mountain of mainland Asia (Russia). In order to better understand the hardwood and/or coniferous forests around the pass flora and vegetation of the Kunashiri, comparisons of floristic of the Mount Tomari caldera, with volcanic solfataras composition with Shiretoko or Hokkaido are also necessary, vegetation (vegetation affected by sulfurous gases of Check List | www.biotaxa.org/cl 1 Volume 11 | Number 1 | Article 1553 Fukuda et al. | Flora of Kunashiri Island, the Kuriles Figure 1. Map of Kunashiri Island with studied localities. The labelled sites correspond to Tables 1 and 2 and Figure 2. Table 1. Localities, studied during expedition. No. Locality Date Latitude Longitude alt. (m) 1 Andreevka S. part of Kunashiri Island, Pacific Ocean coast, on sea terrace between rivers Andreevka and Belkina. 1a Coniferous (Abies–Picea) forest at higher part of sea terrace. 2013/7/19–20 43°53’28”N 145°37’12”E 20 1b Meadow on the lower part of sea terrace. 2013/7/19 43°53’24”N 145°37’26”E 15 1c On the Pacific Ocean coast of Andreevka. 2013/7/19 43°53’15”N 145°37’33’’E ~10 1d Along the river of river Andreevka, near the mouth. 2013/7/19 43°53’16”N 145°37’27”E ~10 2 Caldera of Mount Tomari (volcano Golovnina) S. part of Kunashiri Island, from south foot of Caldera to Okhotsk Sea coast. 2a Bog at the S. lake side of Lake Ponto (L. Kipyascheye) in Caldera of Mount Tomari. 2013/7/20 43°51’47”N 145°29’60”E 140 2b Coniferous (Abies–Picea) forest around “Reserve house” of Ozernoye. 2013/7/21 43°52’24”N 145°28’58”E 130 2c Meadows around “Reserve house” and at lakeside of L. Ichibishinai (L. Goryacheye). 2013/7/21 43°52’23”N 145°28’56”E 140 2d Okhotsk Sea coast at the mouth of the river Ichibishinai (r. Ozernaya). 2013/7/21 43°53’7”N 145°27’43”E ~10 2e At mountain pass of the S. edge of Caldera of Mount Tomari. 2013/7/22 43°50’53”N 145°31’37”E 320 2f Around the center of volcanic activity in Caldera of Mount Tomari. 2013/7/20 43°51’39”N 145°30’17”E 150 3 Stolbovskyy Ecological Trail S. part of Kunashiri Island, a trail from main road leading to the S. coast (Shimato-kaigan) of the cape Zaimoku-iwa (cape Stolbchatyy) of Okhotsk Sea coast. Coniferous (Abies–Picea) forest near the enterance of the trail, mixed forest (with Acer 3a 2013/7/24 44°00’24”N 145°41’8”E 50 pictum, Quercus crispula, Ulmus davidiana, U. laciniata) near Okhotsk Sea coast. 3b Hot spring at riverside, near Okhotsk Sea coast. 2013/7/24 44°00’25”N 145°41’2”E 35 3c Wet meadow near Okhotsk Sea coast. 2013/7/24 44°00’35”N 145°40’43”E ~10 Coastal meadow at Shimato-kaigan, S of the cape Zaimoku-iwa (cape Stolbchatyy), 3d 2013/7/24 44°00’42”N 145°40’36”E ~10 Okhotsk Sea side. 4 S part of Furukamappu Bog, W of Yuzhno-Kurilsk S (coastal) part of Furukamappu bog, W of Yuzhno-Kurilsk, occurring among Picea glehnii forest. 4a Bog with a little pond. 2013/7/25 44°02’14”N 145°49’12”E ~10 4b Picea glehnii forest. 2013/7/25 44°02’15”N 145°49’20”E ~10 Check List | www.biotaxa.org/cl 2 Volume 11 | Number 1 | Article 1553 Fukuda et al. | Flora of Kunashiri Island, the Kuriles volcanic area) also developed in and around the caldera; 4) Furukamappu Bog is located in northwest part of 3) The common plant communities of Stolbovskyy Ecological Yuzhno-Kurilsk and consists of well preserved bogs Trail are mountain hardwood and/or coniferous forests. In dominated by Sphagnum spp. Picea glehnii forest, one of addition to these, coastal grassland is distributed along the the most common forests on perhumid (ever-wet) sites Okhotsk Sea and solfataras are also observed in the middle in south Kuril and Hokkaido, is also developed in the part of the trail; bog. 1a 1b 1c 1d 2a 2b 2d 2e 3a-1 3a-2 3b 3c 3d 4a 4b Figure 2. Pictures, showing the habitat of every locality. The number and alphabet correspondent to those in Figue 1. 1a: Andreevka, forest. 1b: Andreevka, meadow. 1c: Andreevka, coast. 1d: Andreevka, river mouth. 2a: Mount Tomari, lakeside bog. 2b: Mount Tomari, forest. 2d: Mount Tomari region, coast near the mouth of Ozernaya River. 2e: Mount Tomari, at mountain pass. 3a-1: Stolbovskyy, coniferous forest. 3a-2: Stolbovskyy, mixed hardwood forest. 3b: Stolbovskyy, hot spring. 3c: Stolbovskyy, wet meadow. 3d: Stolbovskyy, coast. 4a: Furukamappu, bog. 4b: Furukamappu, forest. Check List | www.biotaxa.org/cl 3 Volume 11 | Number 1 | Article 1553 Fukuda et al. | Flora of Kunashiri Island, the Kuriles These localities were surveyed by four authors (all except V. sometimes covered with Dryopteris expansa (C.Presl) Fraser- Yu. Barkalov). The study was mainly performed at designated Jenk. & Jermy, as also seen in some Abies-Picea forest of vegetation study sites, but was also conducted along the trail Shiretoko (e.g., Cape Shiretoko, Teppanbetsu; Samejima et al.